Re: [ZODB-Dev] Zeo Server as a single point of failure
in that vein, DirectoryStorage-behind-ZEO has worked perfectly for years... but this new stuff is very interesting! wishing we could get DirectoryStorage into svn.zope.org ~alan ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
Re: [ZODB-Dev] Zeo Server as a single point of failure
Hi Alan. I am working on cleanup and will releasing a version with new licensing at some point in near future. I am working at this with bits of time I have between other work. Unfortunately, it had been left for a couple of years without attention and my interest is in keeping it up to date with ZODB development. We discussed this about month or so ago when I communicated I would be maintaining it at sourceforge for the reasons I provided at that time. Regards, David Alan Runyan wrote: in that vein, DirectoryStorage-behind-ZEO has worked perfectly for years... but this new stuff is very interesting! wishing we could get DirectoryStorage into svn.zope.org ~alan ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
Re: [ZODB-Dev] Zeo Server as a single point of failure
Hi Alan. I'm keeping the thread on the list since you raised the issue here. There are several repositories of zope related code that exist outside of svn.zope.org. I have made the decision to host DirectoryStorage at sourceforge on the basis that I have committed to maintaining and contributing to the project. I volunteered to maintain the project since I saw it falling into disrepair following two years without a single commit to the code base. I have become the maintainer on the basis of an agreement with Tobi back in January. This agreement permits me to relicense the code under my choice of a ZPL or MIT license. I cannot work with sources in zope repository since it would require a contributor agreement with Zope Corp. I am unable to enter into this agreement for the forseeable future. The zif collective (zif.sourceforge.net) is a way that I may contribute back to the zope community without the requirement of the agreement. Anyone interested in DirectoryStorage is encouraged to participate in its development since it is an open project that will be getting a more liberal license. There will be something more to build upon once the egg repackaging is released. It will be released under zif namespaced package. Shane and I have a relationship since I was also a project admin for PGStorage when it was located on sourceforge. There is nothing that would prohibit our communication or collaboration on any future development of DirectoryStorage. HTH. Regards, David Alan Runyan wrote: i understand. I wanted to see if I could rile the zodb community into saying we want to maintain it. as in the 'collective' we. I respect your rights. But if I could get Shane to say make it ZPL and I will maintain it -- it would be well worth while to see if I could make this happen alan On Tue, Mar 11, 2008 at 8:16 AM, David Pratt [EMAIL PROTECTED] wrote: Hi Alan. I am working on cleanup and will releasing a version with new licensing at some point in near future. I am working at this with bits of time I have between other work. Unfortunately, it had been left for a couple of years without attention and my interest is in keeping it up to date with ZODB development. We discussed this about month or so ago when I communicated I would be maintaining it at sourceforge for the reasons I provided at that time. Regards, David Alan Runyan wrote: in that vein, DirectoryStorage-behind-ZEO has worked perfectly for years... but this new stuff is very interesting! wishing we could get DirectoryStorage into svn.zope.org ~alan ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
[ZODB-Dev] Zeo Server as a single point of failure
Hello all, I'm currently developing my application ontop of zodb/zeo, and the idea of having the Zeo server the only single point of failure still bothers me. My question is, has anyone thought of any solutions for this. My idea was to have a few or more background processes that kept multiple servers synced and concurrent. Any thoughts? Regards, Kenneth Miller ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
Re: [ZODB-Dev] Zeo Server as a single point of failure
On Mar 10, 2008, at 6:34 PM, Kenneth Miller wrote: Hello all, I'm currently developing my application ontop of zodb/zeo, and the idea of having the Zeo server the only single point of failure still bothers me. My question is, has anyone thought of any solutions for this. My idea was to have a few or more background processes that kept multiple servers synced and concurrent. Any thoughts? - Zope Corp sells ZRS (http://www.zope.com/products/zope_replication_services.html ) - Shane Hathaway's RelStorage (http://wiki.zope.org/ZODB/RelStorage) promises to accomplish some of the same sort of thing with (for instance) Postgres tools though the page I listed says that this is untested. - Christian Theune is working on ZEO RAID: http://pypi.python.org/pypi/gocept.zeoraid/dev Gary ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
Re: [ZODB-Dev] Zeo Server as a single point of failure
Kenneth Miller wrote: I'm currently developing my application ontop of zodb/zeo, and the idea of having the Zeo server the only single point of failure still bothers me. My question is, has anyone thought of any solutions for this. My idea was to have a few or more background processes that kept multiple servers synced and concurrent. Any thoughts? 1. If you use RelStorage instead of ZEO, you should be able to use database-specific replication capabilities. http://wiki.zope.org/ZODB/RelStorage 2. Zope Corporation sells ZRS, which provides master/slave replication for ZEO. http://www.zope.com/zopecom/products/zope_replication_services.html 3. Christian Theune has been working on an interesting solution called ZEO RAID. http://pypi.python.org/pypi/gocept.zeoraid Shane ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
Re: [ZODB-Dev] Zeo Server as a single point of failure
Christian Theune wrote: Hi, On Mon, Mar 10, 2008 at 05:34:59PM -0500, Kenneth Miller wrote: Hello all, I'm currently developing my application ontop of zodb/zeo, and the idea of having the Zeo server the only single point of failure still bothers me. My question is, has anyone thought of any solutions for this. My idea was to have a few or more background processes that kept multiple servers synced and concurrent. Any thoughts? Just to make sure that all of the authors involved with anything here spoke up, please refer to the other two mails by Gary and Shane. ;) Heh. How is the ZEO RAID project going, anyway? It seems like a good idea and I don't think it actually depends on ZEO, does it? For example, I wonder if it's possible to create a RAID storage around a set of RelStorage instances. I got a report from one person who put RelStorage behind a ZEO server. Apparently it works fine, though I haven't tried it myself. Maybe we're finally reaching the point where we can choose from several ZODB storage components and connect them with ease. Shane ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
Re: [ZODB-Dev] Zeo Server as a single point of failure
Hi, On Mon, Mar 10, 2008 at 08:28:48PM -0600, Shane Hathaway wrote: Christian Theune wrote: Hi, On Mon, Mar 10, 2008 at 05:34:59PM -0500, Kenneth Miller wrote: Hello all, I'm currently developing my application ontop of zodb/zeo, and the idea of having the Zeo server the only single point of failure still bothers me. My question is, has anyone thought of any solutions for this. My idea was to have a few or more background processes that kept multiple servers synced and concurrent. Any thoughts? Just to make sure that all of the authors involved with anything here spoke up, please refer to the other two mails by Gary and Shane. ;) Heh. How is the ZEO RAID project going, anyway? It seems like a good idea and I don't think it actually depends on ZEO, does it? For example, I wonder if it's possible to create a RAID storage around a set of RelStorage instances. We have alpha1 out there (see the zope.org repository) with full fail-over and recover facilities. We made some changes to the ZODB trunk to clean up some interfaces and make ZEO support the more elaborate protocol details. I got a report from one person who put RelStorage behind a ZEO server. Apparently it works fine, though I haven't tried it myself. Maybe we're finally reaching the point where we can choose from several ZODB storage components and connect them with ease. Yes, reaching that stage would be nice. Christian -- gocept gmbh co. kg - forsterstrasse 29 - 06112 halle (saale) - germany www.gocept.com - [EMAIL PROTECTED] - phone +49 345 122 9889 7 - fax +49 345 122 9889 1 - zope and plone consulting and development ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
Re: [ZODB-Dev] Zeo Server as a single point of failure
On Mon, Mar 10, 2008 at 08:28:48PM -0600, Shane Hathaway wrote: I got a report from one person who put RelStorage behind a ZEO server. Apparently it works fine, though I haven't tried it myself. Maybe we're finally reaching the point where we can choose from several ZODB storage components and connect them with ease. in that vein, DirectoryStorage-behind-ZEO has worked perfectly for years... but this new stuff is very interesting! -- Paul Winkler http://www.slinkp.com ___ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
